JH
John Hendrickson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Monmouth-County, New Jersey
Our Model Tree links this John Hendrickson across the 1920, 1930 and 1940 US Censuses in Monmouth-County, New Jersey (XGBoost, ~Confirmed), with identified parents Albert & Irene — first a son (b.~1918), then head of a 4-person household.
Age 22
b. ~1918
Male
Son
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Monmouth-County, New Jersey |
| Surname | Hendrickson |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | East Keansburg |
| 1935 Residence (County) | Monmouth |
| Additional Details | |
| Occupation | Laborer |
| Industry | Farm Hand |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 468 |
| Highest Grade | C-4 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Laborer |
| Township / Ward | East Keansburg |
| Est. Birth Year | ~1918 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Louise Hendrickson | Spouse | — | 42 | ~1898 |
| Albert Hendrickson | Head | — | 43 | ~1897 |
| Robert Hendrickson | Son | — | 19 | ~1921 |
| John Hendrickson | Son | — | 22 | ~1918 |
Census Appearances
1920
Middlesex, New …
Other, age 2
Middlesex, New Jersey · implied b. ~1918 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hendrick |
| Given Name | John |
| Relationship to Head | Grandson |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Monmouth, New …
Son, age 12
Monmouth, New Jersey · implied b. ~1918 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hendrick |
| Given Name | John J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Monmouth-County, New …
Son, age 22
Monmouth-County, New Jersey · implied b. ~1918 — 4 household members
| Surname | Hendrickson |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | East Keansburg |
| 1935 Residence (County) | Monmouth |
| Occupation | Laborer |
| Industry | Farm Hand |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 468 |
| Highest Grade | C-4 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links John Hendrickson across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage. Identified parents: father Albert Hendrick (~0.92 confidence) and mother Irene Hendrick (~0.92 confidence) and mother Louise Hendrickson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Albert Hendrick
b. ~1897
Source father
● Household
· direct · ~0.92
Mother
Irene Hendrick
b. ~1898
Source mother
● Household
· direct · ~0.92
Mother
Louise Hendrickson
b. ~1898
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Hendrickson
Son · 1940 · age 22 · b. ~1918 · New Jersey
★ You are viewing this record
Sibling
Robert Hendrickson
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Monmouth-County, New Jersey
Open full size
1940 US Federal Census — Monmouth-County, New Jersey
Page Contents
30 people indexed on this census page (nara:1940:m-t0627-02368-00329)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ludmilla Hawkins | 48 | Wife | — | New Jersey |
| 42 | Harold Kelley | 38 | Head | Driver | New Jersey |
| 43 | Minnie Kelley | 35 | Wife | — | New Jersey |
| 44 | Elsie Kelley | 16 | Daughter | — | New Jersey |
| 45 | Marie Kelley | 15 | Daughter | — | New Jersey |
| 46 | Harold Kelley | 12 | Son | — | New Jersey |
| 47 | Donald Kelley | 9 | Son | — | New Jersey |
| 48 | Harry Richardson | 48 | Boarder | Laborer | New Jersey |
| 49 | Carl Hieling | 39 | Head | Laborer | New Jersey |
| 50 | Marie Hieling | 35 | Wife | — | New Jersey |
| 51 | Carl Hieling | 16 | Son | — | New Jersey |
| 52 | William Fleischer | 60 | Head | — | New York |
| 53 | Margaret Fleischer | 60 | Wife | — | New Jersey |
| 54 | William Bryne | 39 | Son | Laborer | New Jersey |
| 55 | Charles Olsen | 24 | Head | Driver | Maine |
| 56 | Jessie Olsen | 20 | Wife | — | New Jersey |
| 57 | Gilbert Soutafellow | 21 | Head | Carpenter | New Jersey |
| 58 | Beatrice Soutafellow | 24 | Wife | — | New Jersey |
| 59 | Gilbert Soutafellow | 1 | Son | — | New Jersey |
| 60 | Joseph Van Brunt | 85 | Head | — | New Jersey |
| 61 | John Murphy | 49 | Head | Care-Taker | Ireland |
| 62 | Mary Murphy | 47 | Wife | — | Ireland |
| 63 | Harold Gould | 24 | Head | Laborer | New Jersey |
| 64 | Anne Gould | 27 | Wife | — | New York |
| 65 | William Edward | 65 | Head | Caretaker | Florida |
| 66 | Mary Cooper | 20 | Servant | Servant | — |
| 67 | Albert Hendrickson | 43 | Head | Owner | New Jersey |
| 68 | Louise Hendrickson | 42 | Wife | — | New Jersey |
| 69 | John Hendrickson THIS PERSON | 22 | Son | Laborer | New Jersey |
| 70 | Robert Hendrickson | 19 | Son | — | New Jersey |
Pedigree Summary
John + 1 sibling
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)